Premium
Induction of barite mineralization in the Asiatic clam Corbicula fluminea
Author(s) -
Fritz Lowell W.,
Ferrence Gregory,
Jacobsen Timothy R.
Publication year - 1992
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1992.37.2.0442
Subject(s) - corbicula fluminea , aragonite , mineralization (soil science) , bivalvia , mercenaria , shell (structure) , mollusca , environmental chemistry , mineralogy , freshwater bivalve , chemistry , geology , materials science , calcite , biology , ecology , composite material , nitrogen , paleontology , organic chemistry
Barite crystals were formed on the inner shell surface in 1 week by specimens of Corbicula fluminea exposed to dissolved Ba concentrations of 140–559 µ g liter ‒1 . Prevalences of barite crystals increased directly with initial Ba concentrations over the course of a 28‐d experiment. Barite crystals were not observed on the shell exteriors of any clams analyzed. Results suggest that Ba was concentrated by C. fluminea and periodically purged from the soft tissues into the extrapallial fluids, where it heterogeneously coprecipitated with aragonite on the inner shell surface.